Arlington police are looking for a pickup driver who lingered long enough after a deadly hit-and-run last month to see that the motorcyclist was gravely injured.

Officials are offering a $10,000 reward in the case, which is now more than a month old.

Brendan Oliver, 20, was riding his motorcycle around 9 p.m. March 15 when a truck hit him and his bike at Kelly Elliott Road and Bradley Lane.

Based on the motorcycle’s position, investigators believe Oliver tried to lay the bike down to avoid the truck, which was turning left and failed to yield.

Brendan Oliver, 20, was riding his motorcycle on the night of March 15 when he was hit by a truck that failed to yield.

(GoFundMe)

Police found surveillance footage from a nearby home that showed the driver getting out of the truck, walking over to look at Oliver, and then driving off without helping or calling for help.

Oliver was eventually found by two people passing by in their vehicle. Madison Grisham and her mom stopped to help Oliver, KDFW-TV (Channel 4) reported. The passers-by called emergency services, and Oliver was taken to the hospital, where he was in intensive care for about a week.

Oliver was pronounced dead on the morning of March 23.

The surveillance video shows only silhouettes, so a suspect description is not available, police spokesman Steven Bartolotta said. But police believe the pickup that hit Oliver is a dark-colored or black truck.

Oliver’s family members believe the vehicle may be a Dodge Ram 1500 from 2004 or newer based on accounts from people who were driving nearby around the time of the crash.

GoFundMe pages set up by Oliver's family and a friend have raised over $3,000 to cover his medical and funeral costs.

Arlington police are seeking tips from the public. Anyone with information can contact Sgt. Andy Pina at 817-459-5608 or Detective Cody Towns at 817-459-8603 or cody.towns@arlingtontx.gov.

People can also anonymously contact Crime Stoppers at 817-469-8477.

Police said the driver of the truck will face charges for failing to stop and render aid, which can result in up to 20 years in prison and a maximum $10,000 fine.